| 摘要 |
An article of manufacture comprising a steel substrate coated with an electroplated metallic double layer with good corrosion resistance after painting and wet adhesion of paint film; said article having on the steel substrate a first layer of electroplated Zn-Ni alloy containing 7-15 wt % of Ni and on the first layer and, on said first layer, a second electroplated layer of iron or Fe-Zn alloy containing more than 60% of Fe and less than 40% of Zn. |
